/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package org.apache.myfaces.test.webapp.impl.metadata.assertion;

import javax.el.ExpressionFactory;
import javax.el.ValueExpression;
import javax.faces.context.FacesContext;

/**
 * @author Cosmin Martinconi, 26.07.2010
 */
public class AssertableELExpression implements AssertableValue {

    private String elValue;

    public Object evaluate() {
        FacesContext fc = FacesContext.getCurrentInstance();
        ExpressionFactory exprFactory = fc.getApplication().getExpressionFactory();
        ValueExpression valueExpr = exprFactory.createValueExpression(fc.getELContext(), elValue, Object.class);

        return valueExpr.getValue(fc.getELContext());
    }

    public void setELValue(String elValue) {
        this.elValue = elValue;
    }

    public String getElValue() {
        return elValue;
    }

    public String getELBaseAsString() {
        return elValue.substring(elValue.indexOf("{") + 1, elValue.indexOf("."));
    }

    public String getELPropertyAsString() {
        return elValue.substring(elValue.indexOf(".") + 1, elValue.indexOf("}"));
    }

}
